JP2000304540A - Gauge member of plumb bob - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve work efficiency by immediately stopping when the string of a plum bob is drawn and a bob is hung vertically and shortening waiting time for measuring the string position with a mark. SOLUTION: This member 11 is arranged between the case 2 and a bob 5 of a plumb bob 1 where string 3 is contained freely winding in a case 2 and drawn out and a bob 5 is attached at the tip end of the string 3 and is constituted to detect the perpendicularity of an object A to be measured by fixing at the object A to be measured and seeing the position of the mark and the string 3. A resistance member 19 where the string 3 can fit and pass in the gauge member 11 is movably attached and the string 3 is immediately stop vertically with the resistance member 19 so as to perform the measurement in a short time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gauge member used in combination with a lowering for checking the verticality of a building.

[0002]

2. Description of the Related Art In order to check the verticality or the like of a building, a bobbin is used to take up a yarn in a case and house it so that it can be pulled out to the outside. It has a structure with a weight attached to the tip.

[0003] This lowering is achieved by fixing the case to the upper part of the object to be measured by attaching means, hanging the thread pulled out of the case vertically with a weight, and providing a space between the attaching surface of the attaching means in the case and the thread pull-out portion. By comparing the distance between the lower part of the thread and the object to be measured, it is checked whether or not the thread is vertical.

[0004] However, since such a lowering has the inconvenience that the distance between the lower part of the yarn and the object to be measured must be measured with a ruler, the applicant of the present invention has proposed the following method. Japanese Utility Model Application No. 5-29073 has proposed a gauge member that can perform measurement without using a ruler and that can easily and accurately correct an object to be measured vertically.

In this gauge member, one linear metal wire is bent bifurcated, one end is formed as a sharp end to be driven into an object to be measured, and the other end is bent at a right angle to one end side and locked. Then, form a stopper at this bent part,
In the middle of the wire, a mark for detecting the position of the thread is provided at a position equal to the distance between the attachment surface of the attachment means in the case and the drawn-out portion of the thread from the stopper, and fixed to the object to be measured. By observing the relationship between the warp and the mark, the verticality of the measured object can be checked instantaneously.

[0006]

However, in the case of lowering the thread, the thread is pulled out of the case fixed to the object to be measured by the mounting means and the weight is dropped to make the thread vertical. When the weight is dropped, there is room for improvement in that the weight oscillates, it takes time for the thread to rest vertically, and there is a waiting time for measuring the position of the thread with the mark.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to make it possible to stop the thread quickly and vertically when the thread is pulled out and the weight is hung, to reduce the waiting time for measuring the position of the thread with the mark, It is an object of the present invention to provide a lower gauge member capable of improving work efficiency.

[0008]

In order to solve the above-mentioned problems, the invention according to claim 1 winds a yarn in a case and accommodates the yarn so as to be able to be pulled out to the outside, and places the yarn on the object to be measured in the case. Is provided between the weight and the lower case, which has a weight attached to the end of the thread, and is fixed to the measured object to check the position of the mark and the thread to determine the verticality of the measured object. In the gauge member for detection, a configuration is adopted in which a resistance member that passes through the gauge member so that the yarn can be engaged is movably attached.

According to a second aspect of the present invention, in the first aspect of the present invention, the gauge member uses a single linear metal wire,
This configuration employs a configuration in which the tip is a sharp end that is driven into an object to be measured and a stopper is provided at the tip.

According to a third aspect of the present invention, in the first aspect of the present invention, the gauge member bends a single linear metal wire into a forked shape, one end of which is a sharpened end which is driven into an object to be measured, and the other is Is bent at a right angle to one end side and locked, and a stopper is formed at the bent portion.

A fourth aspect of the present invention is the invention according to the first to third aspects, wherein the resistance member attached to the gauge member is formed of a coil spring.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

[0013] As shown in FIG. 1, the lower part 1 winds a thread 3 in a case 2 and stores the thread 3 so that it can be pulled out to the outside.
A conical weight 5 is attached to the end of a thread 3 drawn downward from a hole 4 provided in the lower part of the case 2, and the case 2 is attached to the object A on the front surface serving as an attachment surface for the object A. A magnet 6 as a means is provided, and a needle 7 as a means for attaching to the DUT A is attached to the upper part of the case 2 so that the needle 7 can be freely protruded and retracted to the front side by a handle 8 at the rear. At the lower part of the front surface, a string 9 for changing the posture having a predetermined length is connected.

Although the winding of the yarn 3 is omitted from the drawing,
A reel and a spring are incorporated in the case 2, and a structure is employed in which the spring elastically biases the rotation elasticity in a direction in which the yarn 3 is constantly wound around the reel.

FIGS. 1 to 3 show a first embodiment for detecting the position of the thread 3 by fixing the thread 3 pulled out of the case 2 at the lower end to the DUT A. The gauge member 11 of FIG.

The gauge member 11 bends a single linear metal wire into a forked shape, and forms one sharp end 13 for driving the straight wire portion 12 into the workpiece A, and the other straight wire portion 14 for the other end. It is bent at right angles to one end side and is removably locked to the end side, and a stopper is formed at the bent portion 15. And thread 3
A mark 16 for detecting the position of the yarn 3 is provided at a position equal to the interval H between the drawer portions of.

FIG. 2C shows the gauge member 11 of the first embodiment, in which the object A to be measured is made of metal. The structure adopts a structure in which a magnet 17 is fixed to the tip of the 14.

The gauge member 11 according to the second embodiment shown in FIG. 4 uses a single linear metal wire, and the tip of the wire straight portion 12a is a sharp end 13 that is driven into an object to be measured. A stopper 18 is provided on the wire rod straight portion 12a.
A mark 16 for detecting the position of the thread 3 is provided from the stopper 18 at a position equal to the distance H between the attaching surface of the attaching means in the case 2 and the drawn portion of the thread 3 in the middle of the stopper 18. By observing the relationship between the thread 3 and the mark 16 while being fixed to the measuring object A, the verticality of the measuring object A can be checked instantaneously.

Gauge member 11 in each of the above embodiments
A resistance member 19 that passes through the wire rod straight portions 12 and 12a so that the yarn can be engaged is movably attached.

In the case shown in the figure, the resistance member 19 is fitted with a coil spring of an appropriate length so as to be freely movable in the axial direction on the wire rod straight portions 12 and 12a of the gauge member 11, and the case of the gauge member 11 is formed. The middle of the thread 3 drawn out from 2 passes through the inside of the coil spring.

In the gauge member 11 of the first embodiment, when the resistance member 19 is attached to the gauge member 11, the one wire straight portion 12 is removed from the bent portion 15 and the one wire straight portion 12 is attached to the one wire straight portion 12. 19, the thread 3 is passed through the coil spring so as to intersect at right angles. In this state, the one wire straight portion 12 is passed in the axial direction of the coil spring, and After the middle of the yarn 3 is confined by the above, the leading end side of the one-wire linear portion 12 may be locked to the bent portion 15. Thereby, simultaneously with the attachment of the resistance member 19 to the gauge member 11, the gauge member 11
Can be installed simultaneously on site.

The resistance member 19 is not limited to the illustrated coil spring. For example, the resistance member 19 may be formed of a suitable material such as a synthetic resin, a foamed resin, or a metal to form a cylindrical body or a ring. In short, the point is that the linear member 1 is attached to the linear member 12, 12a of the gauge member.
2, 12a can be moved in the axial direction, and due to the weight and the resistance due to friction with the wire rod straight portions 12, 12a, an appropriate resistance is generated in the movement, and the yarn 3 is engaged in the moving direction with the thread 3 penetrating vertically. Anything that can be done is acceptable.

The gauge member of the present invention is configured as described above, and is set in a set state in which the middle of the thread 3 pulled out from the inside of the case 2 of the downstroke 1 is passed through the resistance member 19 attached to the gauge member 11. To measure the perpendicularity of the measurement object A,
As shown in FIG. 1, the case 2 is fixed to the upper part of the DUT A by using an attaching means, the thread 3 is pulled out from the case 2 by a predetermined length and is dropped by the weight 5, and the position of the lower end of the thread 3 In the above, the gauge member 11 is attached to the DUT A,
The thread 3 is driven and fixed so that the arrangement condition is such that the thread 3 does not contact the wire straight section 12 in the horizontal state.

The thread 3 pulled out of the case 2 swings until the weight 5 at the lower end comes to rest. At this time, the thread 3 is pushed with a fingertip to come into contact with the one wire straight portion 12 of the gauge member 11. Let them do it.

As a result, the swing of the thread 3 is stopped between the case 2 and the gauge member 11 due to the contact with the one wire straight portion 12, and the weight 5 swings at a portion below the gauge member 11. The swing of the thread 3 is rapidly attenuated as a whole, and when the fingertip is released from the thread 3, the entire thread 3 swings due to the swing remaining in a portion below the gauge member 11.

At this time, since the resistance member 19 is connected to the yarn 3, the resistance member 19 also moves integrally with the swing of the yarn 3.

However, when the resistance member 19 is moved, the resistance is given to the swing of the yarn 3 due to the frictional resistance and the weight with the linear wire portion 12, so that the swing of the yarn 3 is a resistance. The vibration is attenuated by the resistance of the member 19, the swinging motion of the weight 5 stops quickly, and the yarn 3 stops in the vertical state.

As described above, since the resistance member 19 can quickly stop the swing of the thread 3, the gauge member 11
By observing the positional relationship between the mark 16 and the thread 3, it can be efficiently confirmed in a short time whether or not the measured object A is vertical.

Even if the resistance member 19 is connected to the yarn 3, the weight 5 has a sufficient weight, so that the yarn 3 is straight up and down and does not bend at the resistance member 11. There is no hindrance to vertical measurements.

Further, when correcting the object to be measured vertically,
The angle of the workpiece A may be adjusted while observing the positional relationship between the thread 3 and the mark 16.

At the time of the above measurement, when the driving position of the gauge member 11 is deviated from the fixed position of the case 2 and the thread 3 comes into contact with the wire straight portion 12, the string connected to the case 2 If the case 9 is pulled in the lateral direction and the case 2 is slightly rotated, the contact between the thread 3 and the wire rod straight portion 12 can be eliminated.

FIG. 3 shows a gauge member 1 according to the first embodiment.
1 shows a stored state when not in use, the yarn 3 is sandwiched between the bent portion 15 of the gauge member 11 and the tip end of the one wire straight portion 12, and the gauge member 11 extends along the length direction of the yarn 3. In addition, the amount of protrusion is reduced.

In the above state, the one wire straight portion 12
Since the thread 3 hangs down from the tip end, if the sharp end 13 of the gauge member 11 is driven into a ceiling surface or the like, the centering between the ceiling surface and the floor surface and the vertical position can be confirmed.

[0034]

As described above, according to the present invention, since the resistance member which passes through the gauge member so that the thread can be engaged is movably attached, the vertical measurement of the object to be measured can be performed by lowering the gauge. In addition, the swinging of the yarn can be stopped quickly by the resistance member, and the waiting time until the swinging of the yarn comes to a standstill reduces the vertical measurement by checking the positional relationship between the mark on the gauge member and the yarn. It can be done quickly.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a use state of a gauge member and a lowering mechanism according to a first embodiment.

2A is a perspective view showing a use state of the gauge member according to the first embodiment, FIG. 2B is a cross-sectional plan view of the same, and FIG. 2C shows another example of a mounting means of the gauge member. Cross-sectional plan view in use

FIG. 3 is a front view of a stored state in which the gauge member according to the first embodiment is arranged along a yarn.

FIG. 4 is a perspective view showing a use state of a gauge member according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lowering 2 Case 3 Thread 4 Hole 5 Weight 11 Gauge member 12 One wire straight part 13 Sharp end 14 Other wire straight part 19 Resistance member

Claims (4)

[Claims] 1. A case and a weight, in which a thread is wound and housed in a case so that the thread can be pulled out to the outside, a means for attaching to the object to be measured is provided in the case, and a weight is attached to a tip of the thread. The gauge member for detecting the verticality of the object to be measured by observing the position of the mark and the yarn by fixing the object to the object to be measured and passing the yarn so that the yarn can be engaged with the gauge member A downwardly-moving gauge member having a movable resistance member attached thereto. 2. The method according to claim 1, wherein the gauge member uses a single linear metal wire, and a tip of the gauge member is a sharp end that is driven into an object to be measured.
2. The lower gauge member according to claim 1, wherein the distal end portion is formed with a stopper. 3. The gauge member according to claim 1, wherein one of the straight metal wires is bent bifurcated, one end is sharpened into the object to be measured, and the other end is bent at right angles to one end side. 2. The lower gauge member according to claim 1, wherein the stopper is locked, and a stopper is formed at the bent portion. 4. The gauge member according to claim 1, wherein the resistance member attached to the gauge member is formed of a coil spring.